Introduction
The Intermatic FF430M is a mechanical, spring-wound timer designed to provide automatic shut-off for various electrical loads. This energy-saving device requires no electricity to operate and is ideal for controlling fans, lights, motors, and heaters. It is designed to replace any standard wall switch, fitting into single or multi-gang boxes, and features an easy 'press-on' knob design for quick installation.

Key Features
- Mechanical Operation: Requires no electricity to operate, providing energy savings.
- Adjustable Timing: Offers a timing range from 0 to 30 minutes.
- DPST Contact Form: Double Pole, Single Throw contacts for robust control.
- Versatile Application: Suitable for automatically limiting the 'ON' time of fans, lights, motors, and heaters.
- Easy Installation: Features 'up front' terminal connections with teeter-type terminals and a 'press-on' knob design.
- Aesthetic Design: Supplied with a molded white time dial plate designed to fit both toggle and decorator style switch plates without field modifications.
- Durable Construction: Rugged time dial plate designed to withstand commercial environments.
- Certifications: UL Listed (E76987) and CSA Certified (Lr3730) for safety and compliance.
Technical Specifications

| Attribute | Value |
|---|---|
| Model Number | FF430M |
| Timing Range | 0 to 30 Minutes |
| Contact Form | DPST (Double Pole, Single Throw) |
| HP @ 120V | 1 HP |
| HP @ 240V | 2 HP |
| Load Capacity @ 125V | 20A (Inductive) / 7A (Tungsten) |
| Load Capacity @ 250V | 10A |
| Load Capacity @ 277V | 10A |
| Faceplate Color | Silver / Brushed Metal Finish |
| Material | Metal |
| Product Dimensions (D x W x H) | 2.3" x 2.9" x 4.5" |
| Item Weight | 0.35 Pounds (5.6 ounces) |
| Mounting Type | Wall |
| Certifications | UL Listed (E76987), CSA Certified (Lr3730) |
| UPC | 078275184350 |
Installation Guide
Safety First: Before beginning any installation, ensure that the power to the circuit is turned OFF at the service panel (breaker box or fuse box) to prevent electrical shock.
The FF430M timer is designed to replace a standard wall switch. It can be installed in single or multi-gang electrical boxes. The 'up front' terminal connections and 'press-on' knob design facilitate a quick and easy installation process.
Wiring Diagrams

For the FF430M (DPST model), refer to the diagram titled "Example for breaking both sides of a 240 volt load using DPST contacts" or "Example for controlling two loads simultaneously by using DPST contacts" in Figure 3. Ensure all connections are secure using the teeter-type terminals.
- Turn off power at the circuit breaker.
- Remove the existing wall switch.
- Connect the timer's wires to the circuit wires according to the appropriate DPST wiring diagram.
- Secure the timer within the wall box.
- Attach the time dial plate and press on the knob.
- Restore power at the circuit breaker.
Operation
The Intermatic FF430M timer is simple to operate:
- To activate the timer, simply turn the knob clockwise to the desired time setting (up to 30 minutes).
- The timer will automatically count down and turn off the connected load once the set time has elapsed.
- The timer does not have a 'hold' feature; it is designed for automatic shut-off only.
Maintenance
The Intermatic FF430M timer requires minimal maintenance. Periodically, you may wipe the faceplate with a soft, damp cloth to remove dust or smudges. Do not use abrasive cleaners or solvents, as these may damage the finish.
Troubleshooting
- Timer does not turn on/off: Ensure the power to the circuit is on. Verify all wiring connections are secure and correct according to the installation diagrams.
- Timer knob is stiff or difficult to turn: This is typically not an issue with new units. If it becomes stiff over time, ensure no debris is obstructing the mechanism. Do not force the knob.
- Timer does not complete full cycle: Check the load capacity to ensure it does not exceed the timer's specifications. Overloading can affect performance.
If issues persist after checking these points, please contact customer support.
Warranty Information
The Intermatic FF430M Spring Wound Timer is covered by a 1-year limited warranty. During this period, if the unit fails due to manufacturing defects, it will be replaced. Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting beyond the scope of this manual, or warranty inquiries, please contact Intermatic customer support. Detailed contact information can typically be found on the official Intermatic website or on the product packaging.





